U.S. patent application number 17/044031 was filed with the patent office on 2021-04-08 for trolley for rolls of material.
The applicant listed for this patent is BHS Intralogistics GmbH. Invention is credited to Karl RUHLAND, Martin RUHLAND.
Application Number | 20210101516 17/044031 |
Document ID | / |
Family ID | 1000005330793 |
Filed Date | 2021-04-08 |
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United States Patent
Application |
20210101516 |
Kind Code |
A1 |
RUHLAND; Martin ; et
al. |
April 8, 2021 |
TROLLEY FOR ROLLS OF MATERIAL
Abstract
The invention relates to a transport trolley for transporting
material rolls. The transport trolley includes a frame, at least
three running units for running on a ground, wherein the running
units are connected to the frame, at least one movement drive for
driving at least one of the running units, wherein the at least one
movement drive is connected to the frame, a material roll receiving
device for receiving a material roll to be transported, wherein the
material roll receiving means is supported by the frame, and a
communications device with a receiver unit for receiving external
information items being connected to the frame. The communications
device is in signal connection with the at least one movement drive
for actuating the latter.
Inventors: |
RUHLAND; Martin; (Regensburg
- Sallern-Gallingkofen, DE) ; RUHLAND; Karl;
(Pfreimd, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BHS Intralogistics GmbH |
Mintraching |
|
DE |
|
|
Family ID: |
1000005330793 |
Appl. No.: |
17/044031 |
Filed: |
March 8, 2019 |
PCT Filed: |
March 8, 2019 |
PCT NO: |
PCT/EP2019/055899 |
371 Date: |
September 30, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G05D 2201/0216 20130101;
G05D 1/021 20130101; B60L 50/60 20190201; B60P 3/035 20130101; G05D
1/0088 20130101 |
International
Class: |
B60P 3/035 20060101
B60P003/035; G05D 1/02 20060101 G05D001/02; B60L 50/60 20060101
B60L050/60 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 9, 2018 |
DE |
10 2018 205 290.5 |
Claims
1. A transport trolley for transporting material rolls, the
transport trolley comprising: a frame; at least three running units
for running on a ground, wherein the running units are connected to
the frame; at least one movement drive for driving at least one of
the running units, wherein the at least one movement drive is
connected to the frame; a material roll receiving means for
receiving a material roll to be transported, wherein the material
roll receiving means is supported by the frame; and a
communications device with a receiver unit for receiving external
information items, the communications device being connected to the
frame and being in signal connection with the at least one movement
drive for actuating the latter.
2. The transport trolley as claimed in claim 1, wherein that the
material roll receiving means is at most at a spacing of 100 mm
with respect to the ground at a lowest receiving point of the
material roll receiving in a transport position.
3. The transport trolley as claimed in claim 1, wherein the
material roll receiving means is supported with respect to the
frame by means of at least one spring unit.
4. The transport trolley as claimed in claim 3, wherein the
material roll receiving means has, at a bottom thereof, at least
one supporting element for support with respect to a ground in case
of compression of the at least one spring unit.
5. The transport trolley as claimed in claim 1, further comprising
a guide for a guided vertical movement of the material roll
receiving means with respect to the frame wherein the guide acts
between the material roll receiving means and the frame.
6. The transport trolley as claimed in claim 1, further comprising
an energy storage unit for outputting electric energy to the at
least one movement drive.
7. The transport trolley as claimed in claim 1, further comprising
a material roll detection sensor for detecting a loading state of
the transport trolley.
8. The transport trolley as claimed in claim 1, further comprising
at least one safety device for prevention accidents.
9. The transport trolley as claimed in claim 1, further comprising
at least one movement path detection device for controlling the
transport trolley along a predefined movement path.
10. The transport trolley as claimed in claim 1, wherein the
transport trolley is movable along an imaginary movement path which
is defined in software.
11. The transport trolley as claimed in claim 1, wherein the
receiver unit is capable of receiving at least one of moving
information items and target information items.
12. The transport trolley as claimed in claim 1, further comprising
at least one auxiliary control device for connecting to an external
auxiliary controller for manual actuating the transport
trolley.
13. The transport trolley as claimed in claim 1, further comprising
at least one emergency shutdown device for rapidly setting the
transport trolley into a safe state.
14. The transport trolley as claimed in claim 1, wherein the
transport trolley is actuatable autonomously.
15. The transport trolley as claimed in claim 1, wherein the
transport trolley is steerable.
16. The transport trolley as claimed in claim 1, wherein: the at
least three running units comprises six running units; four of the
running units are arranged in corner regions of the frame in a
deflectable manner; and two of the running units are arranged in a
center region of the frame in a rotationally drivable manner.
17. An arrangement comprising a transport trolley and a material
roll to be transported, wherein the material roll projects in its
longitudinal with respect to the transport trolley.
18. A corrugated board plant with at least one transport trolley
for transporting material rolls, the transport trolley comprising:
a frame; at least three running units for running on a ground,
wherein the running units are connected to the frame; at least one
movement drive for driving at least one of the running units,
wherein the at least one movement drive is connected to the frame;
a material roll receiving means for receiving a material roll to be
transported, wherein the material roll receiving means is supported
by the frame; and a communications device with a receiver unit for
receiving external information items, the communications device
being connected to the frame and being in signal connection with
the at least one movement drive for actuating the latter.
19. The corrugated board plant as claimed in claim 18, wherein the
at least one transport trolley is capable of navigating
crossroads.
20. The transport trolley as claimed in claim 1, wherein the
transport trolley is configured to transport the material rolls in
a corrugated board plant.
21. The transport trolley as claimed in claim 1, wherein the
material roll receiving means is supported with respect to the
frame by means of at least one spring unit, the at least one spring
unit being prestressed.
22. The transport trolley as claimed in claim 1, further comprising
at least one safety device for prevention accidents, the at least
one safety device being of a visual type.
23. The transport trolley as claimed in claim 1, wherein the
transport trolley is steerable by way of corresponding
actuation.
24. The transport trolley as claimed in claim 1, wherein: the at
least three running units comprises six running units; four of the
running units are arranged in corner regions of the frame in a
deflectable manner; and two of the running units are arranged in a
center region of the frame in a rotationally drivable manner and
each of the rotationally drivable running units is rotationally
drivable by an own movement drive for moving and deflecting the
transport trolley.
25. The arrangement as claimed in claim 17, wherein the material
roll projects in a material roll longitudinal direction on both
sides with respect to the transport trolley.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application claims the priority of German Patent
Application, Serial No. 10 2018 205 290.5, filed Apr. 9, 2018, the
content of which is incorporated herein by reference in its
entirety as if fully set forth herein.
FIELD OF THE INVENTION
[0002] The invention relates to a transport trolley for
transporting material rolls, such as paper rolls, cardboard rolls
or the like, in particular in a corrugated board plant.
Furthermore, the invention is directed to an arrangement consisting
of a transport trolley and a material roll to be transported.
Furthermore, the invention is directed to a corrugated board plant
with at least one transport trolley of this type.
BACKGROUND OF THE INVENTION
[0003] Carriages which are guided on straight rails for
transporting material rolls in a corrugated board plant are known
from the prior art. Said system is extremely inflexible and
complicated.
[0004] Furthermore, the prior art discloses self-propelled
transport trolleys which equip plants and/or machines during use.
Said transport trolleys are of very complicated construction and
are therefore very expensive. Moreover, it is disadvantageous that,
in the case of jobs which are to be processed at the same time,
such as in the case of a width change of a corrugated board web, a
bottleneck is generally produced on account of the serial
processing of the job. Only a few transport trolleys can be used,
usually at most from 2 to 5, since they would otherwise impede one
another, which is the case, above all, in two-way traffic.
Moreover, the use of a plurality of transport trolleys of this type
would be associated with a not inconsiderable cost outlay.
[0005] DE 10 2016 218 106 A1 discloses an apparatus for removing a
material roll from a roll carrier of a machine which processes
material web, in particular a web-fed printing press. A material
roll to be dispensed can be received by a removal device and can be
moved into a storage position. The removal device has a transfer
device which can be moved along a defined distance and has a
substructure, for example in the manner of a trolley. A drive motor
is arranged on the transfer device for the movement capability.
Said apparatus is extremely inflexible and expensive.
[0006] DE 37 31 488 A1 discloses a corrugated board machine with a
roll stand. A conveying apparatus serves for movement to and fro
between a storage space and the roll stand, which conveying
apparatus has a guide groove which is provided in the floor and a
trolley which is provided so as to run freely along the guide
groove. Each end of a tension regulation chain which can be driven
is connected to the trolley.
SUMMARY OF THE INVENTION
[0007] The invention is based on an object of overcoming the
disadvantages of the prior art. In particular, a transport trolley
is to be provided which is extremely flexible and simple, and
inexpensive. A corresponding arrangement consisting of a transport
trolley and a material roll to be transported is to be provided,
moreover. Furthermore, a corresponding corrugated board system with
at least one transport trolley of this type is to be supplied.
[0008] According to the invention, said object is achieved by a
transport trolley for transporting material rolls, in particular in
a corrugated board plant, comprising a frame, at least three
running units for running on a ground, wherein the running units
are connected to the frame, at least one movement drive for driving
at least one of the running units, wherein the at least one
movement drive is connected to the frame, a material roll receiving
means for receiving a material roll to be transported, wherein the
material roll receiving means is supported by the frame, and
comprising a communications device with a receiver unit for
receiving external information items, the communications device
being connected to the frame and being in signal connection with
the at least one movement drive for actuating the latter.
[0009] According to the invention, said object is further achieved
by an arrangement comprising a transport trolley according to the
invention and a material roll to be transported, wherein the
material roll projects in its longitudinal direction, in particular
on both sides, with respect to the transport trolley.
[0010] According to the invention, said object is further achieved
by a corrugated board plant with at least one transport trolley
according to the invention.
[0011] The core of the invention lies in a transport trolley which
comprises at least one dedicated movement drive for driving (in
particular, in a direct or indirect manner) at least one running
unit which can be driven. Furthermore, said transport trolley has a
communications device with a receiver unit for receiving external
information items and/or signals which are, for example, movement,
target and/or surrounding area information items.
[0012] A material roll can be received in the material roll
receptacle, which material roll is formed by way of a material web
which is rolled up, and is preferably required for producing
corrugated board. The material roll receptacle is favorably
accessible from above. It preferably extends along the transport
trolley. An empty inner carrying core of a material roll can also
be received in the material roll receptacle, however.
[0013] The frame is favorably self-supporting. It is advantageous
if the frame is in one piece. As an alternative, the frame is in
multiple pieces.
[0014] The running units are preferably configured as wheel units
which, for example, in each case comprise a wheel or a double
wheel. As an alternative, the running units are, for example, chain
units or sliding units. Combinations are possible. The running
units are preferably arranged directly or indirectly on the frame
or are mounted on the latter.
[0015] The ground is preferably formed from concrete, in particular
fiber concrete. It preferably extends horizontally. The at least
one transport trolley can preferably be moved horizontally.
[0016] The at least one movement drive is preferably configured as
an electric drive. It is preferably arranged directly or indirectly
on the frame. The at least one movement drive is favorably in a
direct or indirect drive connection with the running unit/units to
be driven. It has a motor.
[0017] The communications device preferably operates in a wireless
manner. It is expedient if, in addition to a receiver unit for
receiving external information items, for example from a central
control device and/or an auxiliary controller, the communications
device also comprises a transmitting unit for transmitting
information items and/or signals, for example of respective
positional, movement, surrounding area and/or load information
items, to the central control device. The transport trolley can
preferably be sent to any desired locations. It can preferably be
moved without rails.
[0018] The transport trolley can be implemented particularly simply
by way of a central control device. The central control device
preferably coordinates the at least one transport trolley,
favorably a multiplicity of transport trolleys.
[0019] The material roll receptacle is preferably channel-like.
This embodiment results in a transport trolley which permits
extremely safe transport of the material roll to be transported.
Furthermore, material rolls with different external diameters can
be received and/or transported in this way in a particularly safe
manner Centering of the material roll with respect to the transport
trolley in the transverse direction of the material roll can thus
be achieved in a simple manner. The material roll receptacle is
preferably delimited laterally and/or on the longitudinal side by
way of a corresponding wall. It preferably has a bottom and lateral
guides which lie opposite one another. The material roll receptacle
or wall preferably has at least one curved and/or straight section,
for example.
[0020] The material roll receptacle is preferably not delimited in
the longitudinal direction. Said embodiment permits a relative
longitudinal movement between the transport trolley and a material
roll to be received or dispensed, which material roll is raised, in
particular slightly, with respect to the transport trolley. The
transport trolley can thus be moved simply below the raised
material roll and can be moved away from the latter along the
material roll receptacle or the material roll. A movement takes
place here in the axial direction of the material roll. Collision
points between the transport trolley and the material roll do not
exist. The material roll receptacle is thus preferably open or free
in its longitudinal direction.
[0021] The transport trolley, in which the material roll receiving
means is at most at a spacing of 100 mm with respect to the ground
at its lowest receiving point in its transport position, has an
extremely low centroid in the loaded state and is thus particularly
protected against tipping. Furthermore, a functionally reliable
transfer between a material roll and a web dispensing apparatus of
the corrugated board plant is thus possible.
[0022] The transport trolley, in which the material roll receiving
means is supported with respect to the frame by means of at least
one spring unit, the at least one spring unit preferably being
prestressed, has a particularly long service life. A vertical
movement of the material roll receptacle with respect to the frame
with compression of the at least one spring unit takes place, in
particular, in the case of loading of the transport trolley with an
excessively heavy material roll. The at least one spring unit is
preferably a constituent part of an overload protection device. It
favorably acts in a vertical direction.
[0023] It is advantageous if the spring unit is configured as a
deformable material block or spring. The spring can be, for
example, a gas spring, hydraulic spring or metallic spring, such as
a helical spring or cup spring. The maximum loadbearing capacity of
the transport trolley preferably lies between 4 t and 6 t.
[0024] The transport trolley, in which the material roll receiving
means has, at the bottom, at least one supporting element for
support with respect to a ground in case of compression of the at
least one spring unit, has a particularly long service life. The at
least one supporting element is preferably plate-like and
dimensionally stable. It can preferably be moved with respect to
the frame, in particular in the case of overloading.
[0025] The guide for a guided vertical movement of the material
roll receiving means with respect to the frame, wherein the guide
acts between the material roll receiving means and the frame, is
favorably formed by way of at least two bodies, flanks, walls or
the like of the material roll receptacle and of the frame which are
arranged adjacently with respect to one another.
[0026] The transport trolley comprising an energy storage unit for
outputting electric energy to the at least one movement drive can
preferably be driven autonomously. It is expedient if the energy
storage unit is configured as a battery or accumulator. In the case
of discharge, stored chemical energy is preferably converted into
electric energy by way of electrochemical reaction. The transport
trolley is thus independent of a power grid or an indoor
installation.
[0027] It is expedient if the energy storage unit can be charged,
in particular inductively. The energy storage unit can favorably be
charged in the case of a transport trolley which is moving and/or
at a standstill.
[0028] The material roll detection sensor for detecting a loading
state of the transport trolley is configured, for example, as a
weight sensor or visual sensor. It is expedient if the material
roll detection sensor is assigned to the material roll receptacle.
It is capable, in particular, of detecting whether the transport
trolley is loaded or unloaded. It is advantageous if a
corresponding information item can be sent via the communications
device to the central control device of the corrugated board
system.
[0029] The at least one safety device for prevention accidents is
preferably of a visual type. It is configured, for example, as a
camera, a sensor or the like. It is expedient if the at least one
safety device optionally sends corresponding risk information items
via the communications device to the central control device. It is
advantageous if the at least one safety device detects immovable
and/or movable objects during use.
[0030] In particular, the central control device also assumes the
monitoring of at least one risk and/or protective region. An access
control to the at least one protective region takes place, for
example, in an electronic/visual manner, in particular by means of
at least one (laser) light barrier or a light curtain. The at least
one transport trolley which is situated in the protective region is
then favorably shut down immediately in the case of a risk being
identified.
[0031] Enabling after a risk has been identified preferably takes
place by way of an operating person, for example by way of an
acknowledgement. As an alternative, enabling is possible
automatically by means of a transponder on the operating person, in
particular on his/her clothing. As soon as the operating person
leaves the protective region, said region is favorably enabled
again, and the at least one transport trolley which has been shut
down is started up again. The central control device preferably
controls a central safety concept, with the result that the at
least one transport trolley can be implemented in a comparatively
simple manner.
[0032] The at least one movement path detection device for
controlling the transport trolley along a predefined movement path
is favorably of a visual type. It is preferably configured as a
camera, a sensor or the like. It is expedient if the at least one
movement path detection device is capable of detecting a
corresponding movement path specification arrangement as a movement
path, which arrangement is configured, for example, as a marking on
a ground, such as a hall floor. The transport trolley follows the
movement path specification arrangement.
[0033] The movement path marking is preferably formed by way of a
coat of paint or ink, and is favorably linear. It is, for example,
interrupted or free from interruptions. It is, for example, visible
or invisible.
[0034] It is expedient if the movement path specification
arrangement in accordance with one embodiment is formed at least
partially by way of energy supply coils which are favorably
arranged in the ground. As an alternative, for example, it is
formed by way of a wire which is arranged on or in the ground.
[0035] It is expedient if there is a closed, in particular fully
automatic, material roll or transport trolley circuit. The movement
path can preferably be specified as desired, which simplifies the
planning of the remaining infrastructure. As an alternative, the at
least one transport trolley can be moved along an imaginary
movement path which is defined, for example, in a software program.
An imaginary movement path is understood to mean, in particular, a
movement path which is not specified in a real or tangible way. The
imaginary movement path can also be called, for example, a
hypothetically specified movement path. The at least one transport
trolley can be controlled, for example, via a software control
program.
[0036] The transport trolley comprising at least one auxiliary
control device for connecting to an external auxiliary controller
for manual actuating the transport trolley can also be actuated on
site. The external auxiliary control is preferably a portable
remote controller. It is expedient if the connection between the
auxiliary control device and the auxiliary control is wireless or
wired. A unidirectional or bidirectional signal and/or information
transmission is preferably possible. For example, overtaking of
other transport trolleys is thus possible. In particular,
controlling or moving of the transport trolley away from the actual
movement path is thus possible. The energy then preferably comes
from the energy storage unit.
[0037] The refinement comprising at least one emergency shutdown
device for rapidly setting the transport trolley into a safe state,
leads to a particularly safe transport trolley. The at least one
emergency shutdown device preferably has at least one emergency
shutdown switch which is readily accessible, visible, and can be
actuated manually. The at least one emergency shutdown device is
favorably capable of immediately stopping the transport trolley in
the case of actuation. It is advantageous if the actuated emergency
shutdown device immediately interrupts the energy supply to the at
least one movement drive to this end.
[0038] The transport trolley can be actuated autonomously. In
particular, it is self-propelled. If there are a plurality of
transport trolleys, they can be actuated and/or moved
differently.
[0039] The transport trolley can be steered, in particular by way
of corresponding actuation. It is capable of moving in a straight
line. Furthermore, moving around bends and/or turning are/is
possible. This makes the transport trolley extremely flexible. The
transport trolley can preferably be moved in a manner which is free
from fixedly specified movement parts. For example, it is capable
of carrying out moving around bends and/or turning if, for example,
its receiver unit receives corresponding, direct or indirect
information items, for example from the central control device. A
steering operation of the transport trolley or a deflection of at
least one running unit can preferably be brought about by way of a
controller of the transport trolley and/or by way of corresponding
signals.
[0040] For example, at least one running unit can be deflected.
This can take place, for example, in a targeted manner by way of an
actuable steering device. As an alternative, for example, there are
two movement drives which can be actuated separately and/or
independently of one another and are drive-connected to
corresponding running units. In the case of an identical actuation
of the movement drives, the transport trolley moves in a straight
line, whereas it carries out moving around bends and/or a turning
maneuver in the case of different actuation of the movement drives.
The movement drives can be actuated independently of one another
and differently. They can be driven in opposite rotational
directions.
[0041] The transport trolley comprising six of the running units,
four of the running units being arranged in corner regions of the
frame in a deflectable manner, and two of the running units being
arranged in a center region of the frame in a rotationally drivable
manner, wherein each of the rotationally drivable running units
preferably is rotationally drivable by an own movement drive for
moving and deflecting the transport trolley, has an extremely high
loadbearing capability. Furthermore, it can be steered in a
particularly satisfactory manner.
[0042] In an arrangement comprising a transport trolley and a
material roll to be transported, in which the material roll
projects in its longitudinal direction, in particular on both
sides, with respect to the transport trolley, the material roll
favorably projects homogeneously with respect to the transport
trolley. In terms of its longitudinal direction or axial direction,
the material roll preferably covers the transport trolley
completely.
[0043] It is expedient if the material roll projects in its
transverse direction, in particular on both sides, with respect to
the transport trolley. The material roll favorably projects
uniformly with respect to the transport trolley. In its transverse
direction, that is to say perpendicularly with respect to its
longitudinal direction, the material roll preferably covers the
transport trolley completely.
[0044] The corrugated board plant, in which the at least one
transport trolley is capable of navigating crossroads, favorably
has at least one intermediate web dispensing apparatus for
dispensing at least one intermediate web, and at least one top web
dispensing apparatus for dispensing at least one top web, and at
least one laminating web dispensing apparatus for dispensing a
laminating web.
[0045] Furthermore, the corrugated board plant preferably comprises
at least one corrugated board production apparatus which is
arranged downstream of the at least one intermediate web dispensing
apparatus and top web dispensing apparatus, for producing at least
one corrugated board web which is laminated on one side from the at
least one top web and intermediate web.
[0046] Moreover, the corrugated board plant preferably has a
connecting apparatus for connecting the at least one corrugated
board web which is laminated on one side to the laminating web with
the formation of a corrugated board web which is laminated on both
sides.
[0047] Furthermore, for example, the corrugated board plant has a
cross-cutting apparatus for cutting the corrugated board web which
is laminated on both sides into sheets. It is expedient if,
moreover, the corrugated board plant has a stacking apparatus for
stacking the sheets.
[0048] Moreover, the corrugated board plant preferably has a
control device for actuating the at least one transport
trolley.
[0049] In the following text, preferred exemplary embodiments of
the invention will be described by way of example with reference to
the appended drawing.
BRIEF DESCRIPTION OF THE DRAWING
[0050] FIG. 1 shows a perspective view of a transport trolley
according to the invention,
[0051] FIG. 2 shows an exploded view which illustrates the
essential parts of the transport trolley which is shown in FIG.
1,
[0052] FIG. 3 shows a cross section through the transport trolley
which is shown in FIGS. 1 and 2,
[0053] FIG. 4 shows a further cross section through the transport
trolley which is shown in FIGS. 1 to 3, the spring units thereof
being situated in an unloaded state,
[0054] FIG. 5 shows a cross section in accordance with FIG. 4, the
spring units thereof now being situated in a loaded, compressed
state,
[0055] FIG. 6 shows a view from below which shows the transport
trolley which is illustrated in FIGS. 1 to 5 and a material roll
which is arranged on said transport trolley,
[0056] FIG. 7 shows a side view of the arrangement according to the
invention which is shown in FIG. 6 and consists of a transport
trolley and a material roll,
[0057] FIG. 8 shows a longitudinal section through the arrangement
which is shown in FIG. 6 and consists of a transport trolley and a
material roll, in accordance with the sectional line VIII-VIII in
FIG. 6,
[0058] FIG. 9 shows a perspective view of the arrangement which is
shown in FIGS. 6 to 8 and consists of a transport trolley and a
material roll,
[0059] FIG. 10 shows a cross section through the arrangement which
is shown in FIGS. 6 to 9 and consists of a transport trolley and a
material roll,
[0060] FIG. 11 shows an energy supply coil which is arranged in a
ground,
[0061] FIG. 12 shows a view which illustrates the energy supply
coil which is shown in FIG. 11 and a transport trolley which is
situated above said energy supply coil,
[0062] FIG. 13 shows a further arrangement consisting of an
illustrated transport trolley according to the invention and a
material roll, the material roll having a reduced external diameter
in comparison with FIGS. 6 to 10,
[0063] FIG. 14 shows a longitudinal section through the arrangement
according to the invention which is shown in FIG. 13 and consists
of a transport trolley and a material roll, in accordance with the
sectional line XIV-XIV in FIG. 13, and
[0064] FIG. 15 shows a partial plan view of a simplified corrugated
board plant according to the invention in accordance with a first
embodiment, in which plant transport trolleys and the movement
paths thereof are also shown, and
[0065] FIG. 16 shows a partial plan view of a simplified corrugated
board plant according to the invention in accordance with a second
embodiment, in which plant transport trolleys and the movement
paths thereof are also shown.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0066] Making reference first of all to FIGS. 1 to 5, the
construction of a paper roll transport trolley 5 will be described.
The paper roll transport trolley 5 has a rigid frame 1 which is
rack-like or chassis-like. The frame 1 supports a paper roll
receptacle 2 for a finite rolled-up paper web, a plurality of wheel
units 3 for moving the paper roll transport trolley 5 on a ground,
and a communications device 4.
[0067] The paper roll transport trolley 5 can be set in motion in a
manner which is dependent on signals and/or information items
received via the communications device 4. Furthermore, its speed
can thus be predefined, for example. Path and/or target information
items can accordingly also be transmitted to the paper roll
transport trolley 5. The paper roll transport trolley 5 can be
moved in a straight line or around bends.
[0068] The frame 1 has two longitudinal sides 6 and two transverse
sides 7. The longitudinal sides 6 run parallel to one another. They
extend parallel to the paper roll receptacle 2. The transverse
sides 7 also extend parallel to one another. The longitudinal sides
6 and the transverse sides 7 run at a right angle with respect to
one another.
[0069] An autonomous movement drive 8 which comprises an electric
motor which has a drive shaft is arranged on the frame 1 adjacently
with respect to each longitudinal side 6.
[0070] A drive running wheel 9 which is mounted such that it can be
rotated or can be driven rotationally is drive-connected to each
movement drive 8 or its drive shaft. The rotational axes of the
drive running wheels 9 are aligned with one another. They extend
perpendicularly with respect to the longitudinal sides 6. The drive
running wheels 9 are situated in the center in relation to a
longitudinal direction 10 of the paper roll transport trolley 5.
They cannot be steered.
[0071] Furthermore, a steering wheel unit 11 which in each case
comprises a twin wheel is arranged on the frame 1 on each corner
region of the frame 1. The twin wheels are mounted rotatably. Each
steering wheel unit 11 can be deflected independently about a
vertical steering axis 12. The steering wheel units 11 can be
deflected freely, in particular by 360.degree.. The steering axes
12 run parallel to one another.
[0072] The paper roll receptacle 2 is formed by way of two channel
parts 13 which are arranged spaced apart from one another and are
mounted in each case on the frame 1 such that they can be moved
vertically. The channel parts 13 extend adjacently with respect to
the transverse sides 7 between the longitudinal sides 6. Their
lowest receiving point is situated centrally between the
longitudinal sides 6. They are of symmetrical configuration. The
channel parts 13 have their highest points adjacently with respect
to the longitudinal sides 6 of the frame 1. They are open
adjacently with respect to the transverse sides 7 of the frame 1
and/or in the longitudinal direction.
[0073] At the bottom, the paper roll receptacle 2 supports at least
one horizontally running supporting plate 67.
[0074] Spring units 14 are arranged between the frame 1 and the
channel part 13 which is arranged above the latter. Each spring
unit 14 is formed by way of a compression coil spring which is
prestressed and can be compressed. Coil axes 15 of the spring units
14 run vertically. The spring units 14 are supported at the top in
each case on the frame 1. Furthermore, in each case one of the
channel parts 13 lies at the top on at least two spring units 14.
The maximum spring travel of the spring units 14 favorably lies in
each case between 3 mm and 10 mm, more preferably between 5 mm and
8 mm.
[0075] Guides 16 are arranged between the frame 1 and each channel
part 13, which guides 16 allow a vertical movement of each channel
part 13 with a change of the length of the associated spring units
14, but prevent or reduce a horizontal movement of each channel
part 13 with respect to the frame 1. Each guide 16 is formed by way
of a guide pin 17 which extends vertically and engages from above
into an associated spring unit 14.
[0076] Moreover, an accumulator 18 is arranged on the frame 1. The
accumulator 18 is a rechargeable store for electric energy for the
movement drives 8.
[0077] Furthermore, a voltage regulator 19 is arranged on the frame
1. The voltage regulator 19 is connected electrically to the
accumulator 18. It is capable of balancing fluctuations of the
electric input voltage of the accumulator 18. The voltage regulator
19 is favorably of an electronic type. Moreover, it is connected
electrically to the two movement drives 8.
[0078] Furthermore, a controller 20 is arranged on the frame 1,
which controller 20 is capable of actuating the two movement drives
8 independently of one another. Moreover, the controller 20 is in
signal connection with the communications device 4.
[0079] Furthermore, a terminal box 21 is arranged on the frame 1.
The electronic and/or electric components of the paper roll
transport trolley 5 are connected electrically to one another via
the terminal box 21.
[0080] Furthermore, a safety device 22 which is configured as a
scanner, in particular a laser scanner, is arranged on the frame 1
in a front corner region. The safety device 22 is in signal
connection with the controller 20. It is capable of stopping the
paper roll transport trolley 5 in the case of a risk being
detected.
[0081] Furthermore, an emergency shutdown device 23 is arranged in
each case on the end side of the paper roll transport trolley 5. In
the case of actuation, each emergency shutdown device 23 is capable
of immediately switching off the movement drives 8 and/or
immediately interrupting the power supply to said movement drives
8.
[0082] A movement path detection device 24 which is configured as a
sensor is arranged centrally at the front on the frame 1 adjacently
with respect to the front transverse side 7. The movement path
detection device 24 is of elongate configuration and extends
horizontally. It runs perpendicularly with respect to the
longitudinal direction 10 of the paper roll transport trolley 5. It
is capable of detecting a predetermined movement path.
[0083] Moreover, the frame 1 has an inductive energy transmission
device 25. The energy transmission device 25 is connected
electrically to the accumulator 18. It is arranged in a central
region of the paper roll transport trolley 5.
[0084] The energy transmission device 25 supports a paper roll
detection sensor 26 at the top. The paper roll detection sensor 26
is capable of detecting whether the paper roll transport trolley 5
is loaded or unloaded. It is situated in the paper roll receptacle
2.
[0085] The paper roll transport trolley 5 can be moved by way of
energization of the at least one movement drive 8. The necessary
electric energy comes from the accumulator 18. The movement drives
8 indirectly receive corresponding movement signals via the
movement path detection device 24 and/or for the communications
device 4.
[0086] If the two drive running wheels 9 are driven equally in
opposite directions, the paper roll transport trolley 5 rotates on
the spot. If the one drive running wheel 9 is driven to a more
pronounced extent than the other drive running wheel 9, the paper
roll transport trolley 5 moves around a bend. Here, the steering
wheel units 11 are adjusted automatically about the respective
steering axis 12. If the two drive running wheels 9 are driven
identically and in the same direction, the paper roll transport
trolley 5 moves in a straight line. The steering wheel units 11 are
automatically set correspondingly for straight ahead movement.
[0087] If the paper roll transport trolley 5 is loaded with a paper
roll 27, the channel parts 13 are moved downward counter to the
spring force of the spring units 14 and in a guided manner with
respect to the frame 1 in the case of overloading (FIG. 5). Here,
the at least one supporting plate 67 comes into contact with the
ground. The paper roll transport trolley 5 is protected in this
way.
[0088] The prestressed spring units 14 still hold the paper roll 27
and/or the channel parts 13 in position even in the case of a
maximum paper roll weight, such as five tons. In the case of
overloading (dynamic or static), the spring units 14 yield until
the paper roll receptacle 2 compresses to such an extent that the
at least one supporting plate 67 comes into contact with the ground
and thus dissipates the overloading directly into the ground
without overloading the paper roll transport trolley 5 in the
process.
[0089] The paper roll 27 which is arranged in the paper roll
receptacle 2 lies on the paper roll detection sensor 26 which thus
detects loading by way of the paper roll 27. It extends
horizontally.
[0090] The paper roll 27 lies on the channel parts 13. The channel
parts 13 bear over a part circumferential region of the paper roll
27 against the latter on the bottom and/or on the side. The paper
roll 27 favorably projects in the longitudinal direction 10
uniformly with respect to the paper roll transport trolley 5.
[0091] In the case of unloading of the paper roll 27, the spring
units 14 rebound again, in so far as they have compressed on
account of overloading, and move the channel parts 13 upward in a
guided manner (FIG. 4).
[0092] Each unrolling unit of each splicing apparatus/web
dispensing apparatus favorably has an unrolling arm arrangement for
rotatably mounting the respective paper roll 27. The respective
unrolling arm arrangement preferably at least partially describes a
circular arc movement, in particular in the case of lifting, which
leads to particularly precise receiving of the paper roll 27 in the
paper roll receptacle 2, even in the case of different diameters.
This results in an offset of the paper roll center with respect to
the mandrel of the respective unrolling unit.
[0093] In a corrugated board plant which will be described in the
following text with reference to FIG. 15, a plurality (preferably
between 15 and 25) of the paper roll transport trolleys 5 are used.
They are used, in order to feed paper rolls 27 to a corrugated
board production line of the corrugated board plant for producing
corrugated board, and to transport said paper rolls 27 away
again.
[0094] The corrugated board production line extends along a
corrugated board production direction. It comprises a first
corrugated board production apparatus 28 for producing a first
corrugated board web which is laminated on one side.
[0095] A first top web splicing apparatus 29 and a first
intermediate web splicing apparatus 30 are arranged upstream of the
first corrugated board production apparatus 28. The first top web
splicing apparatus 29 comprises a first unrolling unit for
unrolling a finite first top web from a first top web roll, and a
second unrolling unit for unrolling a finite second top web from a
second top web roll. The finite first top web and second top web
are connected to one another by means of a connecting and cutting
unit of the first top web splicing apparatus 29 in order to provide
an endless first top web.
[0096] The first intermediate web splicing apparatus 30 is
configured in a corresponding manner with respect to the first top
web splicing apparatus 29. Said first intermediate web splicing
apparatus 30 comprises a third unrolling unit for unrolling a
finite first intermediate web from a first intermediate web roll,
and a fourth unrolling unit for unrolling a finite second
intermediate web from a second intermediate web roll. The finite
first intermediate web and second intermediate web are connected to
one another by means of a connecting and cutting unit of the first
intermediate web splicing apparatus 30 in order to provide an
endless first intermediate web.
[0097] The endless first top web and the endless first intermediate
web are fed to the first corrugated board production apparatus
28.
[0098] The first corrugated board production apparatus 28 comprises
a first corrugated roll arrangement with a first corrugated roll
and a second corrugated roll for producing an endless first
corrugated web which has a corrugation from the endless first
intermediate web. The corrugated rolls configure a first roller nip
for leading through and corrugating the endless second intermediate
web.
[0099] In order to connect the endless first top web to the endless
corrugated first intermediate web or corrugated web to form the
endless first corrugated board web which is laminated on one side,
the first corrugated board production apparatus 28 has a first glue
application device which preferably comprises a glue metering roll,
a glue container and a glue application roll. In order to lead the
endless first corrugated web through and to glue it, the glue
application roll configures a nip with the first corrugated roll.
The glue which is situated in the glue container is applied to
peaks of the corrugation of the endless first corrugated web via
the glue application roll. The glue metering roll bears against the
glue application roll and serves to configure a homogeneous glue
layer on the glue application roll.
[0100] The endless first top web is subsequently joined together
with the endless first corrugated web which is provided with glue
from the glue container in the first corrugated board production
apparatus 28 for producing the first corrugated board web which is
laminated on one side.
[0101] The first corrugated board production apparatus 28 has a
first pressing module for pressing the endless first top web
against the endless first corrugated web which is provided with
glue and in turn bears in regions against the first corrugated
roll. The first pressing module is favorably configured as a
pressing belt module. It is arranged above the first corrugated
roll. The first pressing module has two first deflection rolls and
an endless first pressing belt which is guided around the two first
deflection rolls.
[0102] The first corrugated roll engages in regions from below into
a space between the two first deflection rolls of the first
pressing module, as a result of which the first pressing belt is
deflected by way of the first corrugated roll. The first pressing
belt presses against the endless first top web which is in turn
pressed against the endless first corrugated web which is provided
with glue and bears against the first corrugated roll.
[0103] In order to buffer store the endless first corrugated board
web which is laminated on one side, it is fed via a first upper
transport device to a first storage apparatus, where it forms
loops.
[0104] Furthermore, the corrugated board production line has a
second corrugated board production apparatus 31 which is configured
in a corresponding manner with respect to the first corrugated
board production apparatus 28.
[0105] A second top web splicing apparatus 32 and a second
intermediate web splicing apparatus 33 which are configured in a
corresponding manner with respect to the first top web slicing
apparatus 29 and the first intermediate web splicing apparatus 30,
respectively, are arranged upstream of the second corrugated board
production apparatus 31.
[0106] The second top web slicing apparatus 32 comprises a fifth
unrolling unit for unrolling a finite third top web from a third
top web roll, and a sixth unrolling unit for unrolling a finite
fourth top web from a fourth top web roll. The finite third top web
and fourth top web are connected to one another by means of a
connecting and cutting unit of the second top web splicing
apparatus 32 in order to provide an endless second top web.
[0107] The second intermediate web slicing apparatus 33 comprises a
seventh unrolling unit for unrolling a finite third intermediate
web from a third intermediate web roll, and an eighth unrolling
unit for unrolling a finite fourth intermediate web from a fourth
intermediate web roll. The finite third intermediate web and fourth
intermediate web are connected to one another by means of a
connecting and cutting unit of the second intermediate web splicing
apparatus 33 in order to provide an endless second intermediate
web.
[0108] The second corrugated board production apparatus 31 is
capable of producing an endless second corrugated paper web which
is laminated on one side from the endless second top web and
intermediate web.
[0109] The second corrugated paper web which is laminated on one
side is fed to a second storage apparatus, where it forms
loops.
[0110] Moreover, the corrugated board production line has a
laminating web splicing apparatus 34 which comprises a ninth
unrolling unit for unrolling a finite first laminating web from a
first laminating web roll, and a tenth unrolling unit for unrolling
a finite second laminating web from a second laminating web roll.
The finite first laminating web and the finite second laminating
web are connected to one another by means of a connecting and
cutting unit of the laminating web splicing apparatus 34 in order
to provide an endless laminating web.
[0111] Downstream of the storage apparatuses and the laminating web
splicing apparatus 34, the corrugated board production line has a
preheating apparatus which comprises three preheating rolls which
are arranged above one another. The endless corrugated board webs
which are laminated on one side and the endless laminating web are
fed to the preheating apparatuses.
[0112] Downstream of the preheating apparatus, the corrugated board
production line has a gluing unit with gluing rolls which are
dipped partially into a respective glue bath. A glue metering roll
bears against each gluing roll, in order to configure a homogeneous
glue layer on the adjacent gluing roll. The first corrugated board
web which is laminated on one side is situated by way of its
corrugated web in contact with a first gluing roll, with the result
that the corrugation of said corrugated web is provided with glue
from the glue bath. The second corrugated board web which is
laminated on one side is situated by way of its corrugated web in
contact with a second gluing roll, with the result that the
corrugation of said corrugated web is provided with glue from the
associated glue bath.
[0113] Downstream of the gluing unit, the corrugated board
production line has a connecting apparatus 35 which is configured
as a heating/pressing apparatus and comprises a horizontally
running heating table. An endless pressing belt which is guided
around guide rolls is arranged adjacently with respect to the
heating table. A pressing nip is configured between the pressing
belt and the heating table, through which pressing nip the
corrugated board webs which are laminated on one side and the
endless laminating web are guided with the formation of the endless
(here, five-layer) corrugated board web.
[0114] Downstream of the connecting apparatus 35, the corrugated
board production line has a rotary shear apparatus.
[0115] Downstream of the rotary shear apparatus, the corrugated
board production line comprises a slitter/grooving apparatus.
[0116] Downstream of the slitter/grooving apparatus, the corrugated
board production line has a cross-cutting apparatus, in order to
produce sheets from the endless corrugated board web or from part
webs thereof.
[0117] A conveyor belt device is arranged downstream of the
cross-cutting apparatus, in order to convey the sheets further. A
delivery apparatus is arranged downstream of the conveyor belt
device.
[0118] A paper roll store 36 of the corrugated board plant is
situated adjacently with respect to the corrugated board production
line, in which paper roll store 36 a multiplicity of (favorably,
different) paper rolls 27 for the splicing apparatuses 29, 30, 32,
33, 34 are stored.
[0119] A transfer point 36a is situated adjacently with respect to
the paper roll store 36, where the paper rolls 27 are transferred
from the paper roll store 36 to the respective paper roll transport
trolley 5, for example in a manual or automated manner.
[0120] FIG. 15 also shows movement path markings 38 which indicate
and specify the movement paths of the paper roll transport trolleys
5 in the corrugated board plant. The movement path markings 38 are
visible and are applied as a coat of paint to a planar ground which
supports the corrugated board plant. They can be detected by the
movement path detection devices 24 of the paper roll transport
trolleys 5. In normal operation, during movement, the paper roll
transport trolleys 5 follow the movement path markings 38 which
comprise bends, switches, crossings and straight sections. The
central control device 65 specifies how the paper roll transport
trolley 5 is to move in the case of switches, crossings or the
like. The maximum movement speed of the paper roll transport
trolleys 5 preferably lies at 0.4 m/s.
[0121] As FIG. 15 shows, the transfer point 36a is adjoined by a
feed/discharge path 39, where the paper roll transport trolleys 5
move in opposite directions during operation of the corrugated
board plant. The feed/discharge path 39 has a straight section
which adjoins the transfer point 36a, and a curved section on the
end side.
[0122] The curved section of the feed/discharge path 39 is adjoined
by a distribution path 40. The paper roll transport trolleys 5 move
on the distribution path 40 in opposite directions to one another
during operation of the corrugated board plant. The distribution
path 40 extends parallel to the straight section of the
feed/discharge path 39 and the corrugated board production line. It
runs between the straight section of the feed/discharge path 39 and
the corrugated board production line. The feed/discharge line 39
adjoins the distribution path 40 laterally in a manner which is
spaced apart from the ends of the distribution path 40.
[0123] A first switch 41 and a second switch 42 are situated
between the distribution path 40 and the feed/discharge path 39. In
a manner which is dependent on the selected switches 41, 42, the
paper roll transport trolleys 5 are guided accordingly into the
distribution path 40. The paper roll transport trolleys 5 can thus
also be guided from the distribution path 40 via the respective
switch 41, 42 back to the feed/discharge path 39 again.
[0124] The distribution path 40 is adjoined on the end side by a
first top web path 43 via a 90.degree. bend. The distribution path
40 is adjoined via a further 90.degree. bend by an intermediate
web/top web path 44 which extends parallel to the first top web
path 43. The distribution path 40 is adjoined via a further
90.degree. bend by an intermediate web/laminating web path 45 which
runs parallel to the intermediate web/top web path 44. The
distribution path 40 is adjoined on the end side via a further
90.degree. bend by an alternative path 46. The intermediate web/top
web path 44 is arranged between the first top web path 43 and the
intermediate web/laminating web path 45. The intermediate
web/laminating web path 45 is arranged between the intermediate
web/top web path 44 and the alternative path 46.
[0125] The first top web path 43 and the intermediate web/top web
path 44 can be reached from the feed/discharge path 39 via the
first switch 41. The intermediate web/laminating web path 45 and
the alternative path 46 can be reached from the feed/discharge path
39 via the second switch 42. The alternative path 46 serves to
improve the movement paths of the paper roll transport trolleys
5.
[0126] The first top web path 43 is adjoined by a top web return
path 47 which runs in a straight line and is aligned with the first
top web path 43. The first top web path 43 is adjoined via a switch
and a bend by a first top web feed path 48 and, via a further
switch and a further bend, by a second top web feed path 49.
[0127] The top web return path 47, the first top web feed path 48
and the second top web feed path 49 run mainly in each case in a
straight line, parallel to one another, and extend in each case
perpendicularly with respect to the corrugated board production
line. They are in each case one-way paths and run through the
corrugated board production line. The top web feed paths 48, 49 are
aligned with the unrolling units of the first top web splicing
apparatus 29.
[0128] The top web return path 47, the first top web feed path 48
and the second top web feed path 49 are situated in a first laser
scanner protective region 50. By means of a light curtain and an
on-person transponder, movements which entail risk are stopped by
the central control device 65 in the case of the laser scanner
protective region 50 being entered, and are also enabled again,
without it being necessary for an operating person to enable the
corresponding locations again.
[0129] The intermediate web/top web path 44 is adjoined by an
intermediate web/top web return path 41 which runs in a straight
line and is aligned with the intermediate web/top web path 44. The
intermediate web/top web path 44 is adjoined via a switch and a
bend by a first intermediate web feed path 42. Furthermore, the
intermediate web/top web path 44 is adjoined via a further switch
and a further bend by a second intermediate feed path 53.
Furthermore, the intermediate web/top web path 44 is adjoined via a
further switch and a further bend by a third top web feed path 54.
Furthermore, the intermediate web/top web path 44 is adjoined via a
further switch and a further bend by a fourth top web feed path
55.
[0130] The first intermediate web feed path 52, the second
intermediate web feed path 53, the third top web feed path 54, the
fourth top web feed path 55 and the intermediate web/top web return
path 51 in each case run mainly in a straight line, parallel to one
another and perpendicularly with respect to the corrugated board
production line. They are in each case one-way paths. The first
intermediate web feed path 52 and the second intermediate web feed
path 53 are aligned with the unrolling units of the first
intermediate web splicing apparatus 30. The third top web feed path
54 and the fourth top web feed path 55 are aligned with the
unrolling units of the second top web splicing apparatus 32.
[0131] The first intermediate web feed path 52, the second
intermediate web feed path 53, the third top web feed path 54, the
fourth top web feed path 55 and the intermediate web/top web return
path 51 run through the corrugated board production line and are
situated in a second laser scanner protective region 56. By means
of a light curtain and an on-person transponder, movements which
entail risk are stopped in the case of the second laser scanner
protective region 56 being entered, and are also enabled again,
without it being necessary for an operating person to enable the
corresponding locations again.
[0132] The intermediate web/laminating web path 45 is adjoined by
an intermediate web/laminating web return path 57 which runs in a
straight line and is aligned with the intermediate web/laminating
web path 45. The intermediate web/laminating web path 45 is
adjoined via a switch and a bend by a third intermediate web feed
path 58. The intermediate web/laminating web path 45 is adjoined
via a switch and a bend by a fourth intermediate web feed path 59.
The intermediate web/laminating web path 45 is adjoined via a
switch and a bend by a first laminating web feed path 60. The
intermediate web/laminating web path 45 is adjoined via a switch
and a bend by a second laminating web feed path 61.
[0133] The third intermediate web feed path 58, the fourth
intermediate web feed path 59, the first laminating web feed path
60, the second laminating web feed path 61 and the intermediate
web/laminating web return path 57 in each case run mainly in a
straight line, parallel to one another and perpendicularly with
respect to the corrugated board production line. The third
intermediate web feed path 58 and the fourth intermediate web feed
path 59 are aligned with the unrolling units of the second
intermediate web splicing apparatus 33. The first laminating web
feed path 60 and the second laminating web feed path 61 are aligned
with the unrolling units of the laminating web splicing apparatus
34.
[0134] The third intermediate web feed path 58, the fourth
intermediate web feed path 59, the first laminating web feed path
60, the second laminating web feed path 61 and the intermediate
web/laminating web return path 57 run through the corrugated board
production line and are situated in a third laser scanner
protective region 62. By means of a light curtain and an on-person
transponder, movements which entail risk are stopped in the case of
the third laser scanner protective region 62 being entered, and are
also enabled again, without it being necessary for an operating
person to enable the corresponding locations again.
[0135] In the following text, the transport of the paper rolls 27
via the paper roll transport trolleys 5 in the corrugated board
plant will be described in greater detail. A central control device
65 of the corrugated board plant brings about the fetching of a
paper roll 27 to be used from the paper roll store 36 for the
corrugated board production in the corrugated board production line
via a paper roll transport trolley 5. To this end, a paper roll
transport trolley 5 moves to the transfer point 36a if it is not
yet situated there. The paper roll 27 is loaded onto the paper roll
transport trolley 5 there. It lies in the paper roll receptacle 2
in a centered manner.
[0136] Subsequently, the central control device 65 sends the loaded
paper roll transport trolley 5 to the splicing apparatus 29, 30,
32, 33 or 34 which requires the paper roll 27.
[0137] The paper roll transport trolleys 5 can move in a laterally
offset manner with respect to the movement path marking 38, in
particular, by way of targeted actuation. The paper rolls 27 can
thus be aligned in accordance with the external diameter thereof
exactly according to the splicing apparatus 29, 30, 32, 33 or 34 to
be equipped or according to the transfer point 36a. As an
alternative, the paper roll transport trolley 5 is configured to
move the paper roll 27 axially with respect to it or with respect
to the frame 1.
[0138] In order to equip a splicing apparatus 29, 30, 32, 33 or 34,
the paper roll transport trolley 5 first of all moves along the
feed/discharge path 39 in the direction of the distribution path
40.
[0139] If the first top web splicing apparatus 29 is to be equipped
again with the paper roll 27, the paper roll transport trolley 5
moves via the first switch 41 onto the distribution path 40, and
passes the intermediate web/top web path 44. Said paper roll
transport trolley 5 then passes via the first top web path 43 to
the first top web feed path 48 or the second top web feed path 49.
In a manner which is dependent on the required equipping of the
first or second unrolling unit of the first top web splicing
apparatus 29, the corresponding feed path 48, 49 is selected.
[0140] When this job has been finished, the residual paper roll 27
which can be completely empty or can still be carrying paper is
moved out of the corresponding unrolling unit away from the first
top web path 43. The residual paper roll 27 is then moved back to
the paper roll store 36 via the top web return path 47, the first
top web path 43, the distribution path 40, the switch 41 and the
feed/discharge path 39.
[0141] If the first intermediate web splicing apparatus 30 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the first switch 41 and the distribution path
40 into the intermediate web/top web path 44. The corresponding
feed path 52, 53 is selected in a manner which is dependent on the
required equipping of the third or fourth unrolling unit of the
first intermediate web splicing apparatus 30.
[0142] When this job has been finished, the residual paper roll 27
which can be completely empty or can still be carrying paper is
moved out of the corresponding unrolling unit away from the first
intermediate web/top web path 44. The residual paper roll 27 is
then moved back to the paper roll store 36 via the intermediate
web/top web return path 51, the first intermediate web/top web path
44, the distribution path 40, the switch 41 and the feed/discharge
path 39.
[0143] If the second top web splicing apparatus 32 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the first switch 41 and the distribution path
40 into the intermediate web/top web path 44. The corresponding
feed path 54, 55 is selected in a manner which is dependent on the
required equipping of the fifth or sixth unrolling unit of the
second top web splicing apparatus 29.
[0144] When this job has been finished, the residual paper roll 27
which can be completely empty or can still be carrying paper is
moved out of the corresponding unrolling unit away from the
intermediate web/top web path 44. The residual paper roll 27 is
then moved back to the paper roll store 36 via the intermediate
web/top web return path 51, the intermediate web/top web path 44,
the distribution path 40, the switch 41 and the feed/discharge path
39.
[0145] If the second intermediate web splicing apparatus 33 is to
be re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the second switch 42 and the distribution path
40 into the intermediate web/laminating web path 45. The
corresponding feed path 58, 59 is selected in a manner which is
dependent on the required equipping of the seventh or eighth
unrolling unit of the second intermediate web splicing apparatus
33.
[0146] When this job has been finished, the residual paper roll 27
which can be completely empty or can still be carrying paper is
moved out of the corresponding unrolling unit away from the
intermediate web/laminating web path 45. The residual paper roll 27
is then moved back to the paper roll store 36 via the intermediate
web/laminating web return path 57, the intermediate web/laminating
web path 45, the distribution path 40, the second switch 42 and the
feed/discharge path 39.
[0147] If the laminating web splicing apparatus 34 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the second switch 42 and the distribution path
40 into the intermediate web/laminating web path 45. The
corresponding feed path 60, 61 is selected in a manner which is
dependent on the required equipping of the ninth or tenth unrolling
unit of the laminating web splicing apparatus 34.
[0148] When this job has been finished, the residual paper roll 27
which can be completely empty or can still be carrying paper is
moved out of the corresponding unrolling unit away from the
intermediate web/laminating web path 45. The residual paper roll 27
is then moved back to the paper roll store 36 via the intermediate
web/laminating web return path 57, the intermediate web/laminating
web path 45, the distribution path 40, the second switch 42 and the
feed/discharge path 39.
[0149] The paper roll transport trolleys 5 move safely on their
movement path which is formed by way of the individual paths. In
the process, they are charged in charging zones which are formed by
way of coils 66 in the ground along the movement path. The coils 66
are preferably laid centrally with regard to the movement path
marking, and extend over a majority of the movement path. The
electric energy of the coils 66 is transmitted to the paper roll
transport trolleys 5 via their energy transmission device 25. The
charging zones favorably coincide with waiting zones.
[0150] A circuit is produced in the corrugated board plant by way
of the paper roll transport trolleys 5, which circuit is formed, in
particular, by way of the inward transport of the paper rolls 27
and the outward transport of the residual paper rolls 27. The
inward transport of the paper rolls 27 and/or the outward transport
of the residual paper rolls 27 take/takes place in each case at
least partially, preferably at least mostly, in one-way road
operation or in a unidirectional manner. The outward transport or
return transport of the residual paper rolls 27 takes place at
least partially, preferably at least mostly, on a separate
path.
[0151] The feed/discharge path 39 is utilized both for feeding and
for discharging of the paper roll transport trolleys 5 in relation
to the paper roll store 36, regardless of the splicing apparatus
29, 32, 30, 33, 34, for which the paper roll transport trolleys 5
are provided or from which they are coming.
[0152] The distribution path 40 is also utilized at least partially
by all the paper roll transport trolleys 5. The paper roll
transport trolleys 5 utilize said distribution path 40 at least
partially, in order to arrive at the planned splicing apparatus 29,
32, 30, 33, 34 and/or to return from it or to the feed/discharge
path 39.
[0153] In the case of the corrugated board plant, in particular, a
plurality (preferably all) of the paper rolls 27 which are to be
moved for a job can be moved in parallel and/or at the same time by
way of the paper roll transport trolleys 5, which is highly
economical and leads to rapid paper roll changes. The movement path
of the paper roll transport trolleys 5 is directional.
[0154] It is advantageous if, in accordance with one alternative
embodiment, the paper roll transport trolleys 5 are set in motion
only when a switch on the paper roll transport trolley 5 is
supplied with energy via induction. Without energy from the coils
66, the paper roll transport trolley 5 brakes in a controlled
manner to a standstill.
[0155] The safety device 22 of the paper roll transport trolleys 5
prevents collisions.
[0156] It is expedient if the respective position of the paper roll
transport trolley 5 can be determined, for example by way of
sensors. Precise positions of the respective paper roll transport
trolley 5 can favorably be determined by way of encoding means
along the movement path.
[0157] Each paper roll transport trolley 5 can also be controlled
manually. To this end, each paper roll transport trolley 5 has an
auxiliary control device 63 for connection to an external portable
auxiliary controller 64.
[0158] As an alternative, a corrugated board production line for
the formation of a three-layer or seven-layer corrugated board web
is provided.
[0159] In the following text, a second embodiment of a corrugated
board plant will be described with reference to FIG. 16. Identical
parts and/or elements are given the same designations as in the
case of the first embodiment, reference being made here by
explicitly to the description of said first embodiment.
Structurally different but functionally identical parts are given
the same designations followed by an "a".
[0160] In comparison with the first embodiment, the distribution
path 40a in the case of the corrugated board plant according to
FIG. 16 is configured as a one-way street and a circuit. The
distribution path 40a, which is therefore endless, comprises a
substantially straight first distribution path section 68 which
adjoins the first switch 41 and second switch 42, and a second
distribution path section 69 which runs parallel to the first
distribution path section 68. The first and second distribution
path section 68, 69 extend parallel to the straight section of the
feed/discharge path 39 and the corrugated board production line,
and are connected to one another.
[0161] The paper roll transport trolleys 5 are optionally moved in
a first direction on the first distribution path section 68 during
operation of the corrugated board plant, whereas the paper roll
transport trolleys 5 are moved on the second distribution path
section 69 in a second direction which is opposed to the first
direction.
[0162] The distribution path 40a is adjoined by a first top web
path 43a. The first distribution path section 68 and second
distribution path section 69 are adjoined by the first top web path
43a which is as it were endless and comprises a first top web path
section 70 and a second top web path section 71. The top web path
sections 70, 71 extend parallel to one another and are aligned with
the rolling units of the first top web splicing apparatus 29. The
first top web path section 70 adjoins the first distribution path
section 68 via a connector piece 72, and adjoins the second
distribution path section 69 via a bend 73. The second top web path
section 71 adjoins the first distribution path section 68 via a
bend 74, and adjoins the second distribution path section 69 via a
bend 75. The first and second top web path sections 70, 71 run
through the corrugated board production line at the respective
unrolling unit, and are connected to one another on the other side
of the corrugated board production line.
[0163] The paper roll transport trolleys 5 can be moved both on the
first top web path section 70 and on the second top web path
section 71 in opposite directions for equipping the first top web
splicing apparatus 29 and removing residual paper rolls 27. A
circulating transport of the paper roll transport trolleys 5 in one
direction for equipping the first top web splicing apparatus 29 and
removing a residual paper roll 27 along the first top web path 43a
is also possible.
[0164] The distribution path 40a is adjoined by a first
intermediate web path 76. The first distribution path section 68
and second distribution path section 69 are adjoined by the first
intermediate web path 76 which is as it were endless and comprises
a first intermediate web path section 77 and a second intermediate
web path section 78. The intermediate web path sections 77, 78
extend parallel to one another and to the top web path sections 70,
71. They are aligned with the unrolling units of the first
intermediate web splicing apparatus 30. The first intermediate web
path section 77 is connected to the first distribution path section
68 via a double bend 79, and is connected to the second
distribution path section 69 via a double bend 80. The second
intermediate web path section 78 is connected to the first
distribution path section 68 via a double bend 81, and is connected
to the second distribution path section 69 via a second double bend
82. The first and second intermediate web path sections 77, 78 run
through the corrugated board production line at the respective
unrolling unit, and are connected to one another on the other side
of the corrugated board production line.
[0165] The paper roll transport trolleys 5 can be moved both on the
first intermediate web path section 77 and on the second
intermediate web path section 78 in opposite directions for
equipping the first intermediate web splicing apparatus 30 and
removing residual paper rolls 27. A circulating transport of the
paper roll transport trolleys 5 in one direction for equipping the
first intermediate web splicing apparatus 30 and removing a
residual paper roll 27 along the first intermediate web path 76 is
also possible.
[0166] The distribution path 40a is adjoined by a second top web
path 83. The first distribution path section 68 and the second
distribution path section 69 are adjoined by the second top web
path 83 which is as it were endless and comprises a first top web
path section 84 and a second top web path section 85. The top web
path sections 84, 85 extend parallel to one another and to the top
web path sections 70, 71. They are aligned with the unrolling units
of the second top web splicing apparatus 32. The first top web path
section 84 adjoins the first distribution path section 68 via a
double bend 86, and adjoins the second distribution path section 69
via a double bend 87. The second top web path section 85 adjoins
the first distribution path section 68 via a double bend 88, and
adjoins the second distribution path section 69 via a double bend
89. The first and second top web path sections 84, 85 run through
the corrugated board production line at the respective unrolling
unit, and are connected to one another on the other side of the
corrugated board production line.
[0167] The paper roll transport trolleys 5 can be moved both on the
first top web path section 84 and on the second top web path
section 85 in opposite directions for equipping the second top web
splicing apparatus 32 and removing residual paper rolls 27. A
circulating transport of the paper roll transport trolleys 5 in one
direction for equipping the second top web splicing apparatus 32
and removing a residual paper roll 27 along the second top web path
83 is also possible.
[0168] The distribution path 40a is adjoined by a second
intermediate web path 90. The first distribution path section 68
and second distribution path section 69 are adjoined by the second
intermediate web path 90 which is as it were endless and comprises
a first intermediate web path section 91 and a second intermediate
web path section 92. The intermediate web path sections 91, 92
extend parallel to one another and to the top web path sections 70,
71. They are aligned with the unrolling units of the second
intermediate web splicing apparatus 33. The first intermediate web
path section 91 adjoins the first distribution path section 68 via
a double bend 93, and adjoins the second distribution path section
69 via a double bend 94. The second intermediate web path section
92 adjoins the first distribution path section 68 via a double bend
95, and adjoins the second distribution path section 69 via a
double bend 96. The first and second intermediate web path sections
91, 92 run through the corrugated board production line at the
respective unrolling unit, and are connected to one another on the
other side of the corrugated board production line.
[0169] The paper roll transport trolleys 5 can be moved both on the
first intermediate web path section 91 and on the second
intermediate web path section 92 in opposite directions for
equipping the second intermediate web splicing apparatus 33 and
removing residual paper rolls 27. A circulating transport of the
paper roll transport trolleys 5 in one direction for equipping the
second intermediate web splicing apparatus 33 and removing a
residual paper roll 27 along the second intermediate web path 90 is
also possible.
[0170] The distribution path 40a is adjoined by a laminating web
path 97. The first distribution path section 68 and second
distribution path section 69 are adjoined by the laminating web
path 97 which is as it were endless and comprises a first
laminating web path section 98 and a second laminating web path
section 99. The laminating web path sections 98, 99 extend parallel
to one another and to the top web path sections 70, 71. They are
aligned with the unrolling units of the laminating web splicing
apparatus 34. The first laminating web path section 98 adjoins the
first distribution path section 68 via a double bend 100, and
adjoins the second distribution path section 69 via a double bend
101. The second laminating web path section 99 adjoins the first
distribution path section 68 via a double bend 102, and adjoins the
second distribution path section 69 via a double bend 103. The
first and second laminating web path sections 98, 99 run through
the corrugated board production line at the respective unrolling
unit, and are connected to one another on the other side of the
corrugated board production line.
[0171] The paper roll transport trolleys 5 can be moved both on the
first laminating web path section 98 and on the second laminating
web path section 99 in opposite directions for equipping the
laminating web splicing apparatus 34 and removing residual paper
rolls 27. A circulating transport of the paper roll transport
trolleys 5 in one direction for equipping the laminating web
splicing apparatus 34 and removing a residual paper roll 27 along
the laminating web path 97 is also possible.
[0172] The top web paths 43a, 83, intermediate web paths 76, 90 and
the laminating web path 97 are connected to the distribution path
40a in a manner which is spaced apart from one another, and run in
a manner which is spaced apart from one another. They are situated
in a laser scanner protective region 50.
[0173] In the following text, the transport of the paper rolls 27
via the paper roll transport trolleys 5 in the corrugated board
plant will be described in greater detail. In comparison with the
preceding embodiment, each paper roll transport trolley 5 always
moves during operation from the feed/discharge path 39 via the
second switch 42 to the distribution path 40a. Each paper roll
transport trolley 5 moves via the first distribution path section
68 to the second distribution path section 69. The central control
unit 65 sends the loaded paper roll transport trolley 5 to the
splicing apparatus 29, 30, 32, 33, 34 which requires the paper roll
27 via the corresponding path 70, 71, 77, 78, 84, 85, 91, 92, 98
and 99, respectively.
[0174] If the first top web splicing apparatus 29 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the bend 73 or the bend 75 from the second
distribution path section 69 to the top web path section 70 or 71,
respectively. The corresponding top web path section 70, 71 is
selected in a manner which is dependent on the required equipping
of the first or second unrolling unit of the first top web splicing
apparatus 29.
[0175] Via the bend 72 or the bend 74, the paper roll transport
trolley 5 can be returned with a residual paper roll 27 from the
respective top web section 70, 71 to the first distribution path
section 68, and can be moved from there back to the paper roll
store 36 via the first switch 41 and the feed/discharge path 39.
Here, the paper roll transport trolley 5 moves in an opposite
direction in comparison with the equipping.
[0176] If the first intermediate web splicing apparatus 30 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the double bend 80 or the double bend 82 from
the second distribution path section 69 to the intermediate web
path section 77 or 78. The corresponding intermediate web path
section 77, 78 is selected in a manner which is dependent on the
required equipping of the first or second unrolling unit of the
first intermediate web splicing apparatus 30. The paper roll
transport trolley 5 can also pass via the double bend 79 or the
double bend 81 from the first distribution path section 68 to the
intermediate web path section 77 or 78.
[0177] Via the double bend 79 or the double bend 81, the paper roll
transport trolley 5 can be returned with a residual paper roll 27
from the respective intermediate web path section 77, 78 to the
first distribution path section 68. Via the double bend 80 or the
double bend 82, the paper roll transport trolley 5 can be returned
with a residual paper roll 27 to the second distribution path
section 69. Here, the paper roll transport trolley 5 moves in an
opposite direction in comparison with the equipping. It can be
moved back to the paper roll store 36 via the first switch 41 and
the feed/discharge path 39.
[0178] If the second top web splicing apparatus 32 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the double bend 87 or the double bend 89 from
the second distribution path section 69 to the top web path section
84 or 85. The corresponding top web path section 84, 85 is selected
in a manner which is dependent on the required equipping of the
first or second unrolling unit of the second top web splicing
apparatus 32. The paper roll transport trolley 5 can also pass via
the double bend 86 or the double bend 88 from the first
distribution path section 68 to the top web path section 84 or
85.
[0179] Via the double bend 86 or the double bend 88, the paper roll
transport trolley 5 can return with a residual paper roll 27 from
the respective top web path section 84, 85 to the first
distribution path section 68. Via the double bend 87 or the double
bend 89, the paper roll transport trolley 5 can return with a
residual paper roll 27 to the second distribution path section 69.
Here, the paper roll transport trolley 5 moves in an opposite
direction in comparison with the equipping. It can move back to the
paper roll store 36 via the first switch 41 and the feed/discharge
path 39.
[0180] If the second intermediate web splicing apparatus 33 is to
be re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the double bend 94 or the double bend 96 from
the second distribution path section 69 to the intermediate web
path section 91 or 92. The corresponding intermediate web path
section 91, 92 is selected in a manner which is dependent on the
required equipping of the first or second unrolling unit of the
second intermediate web splicing apparatus 33. The paper roll
transport trolley 5 can also pass via the double bend 93 or the
double bend 95 from the first distribution path section 68 to the
intermediate web path section 91 or 92.
[0181] Via the double bend 93 or the double bend 95, the paper roll
transport trolley 5 can return with a residual paper roll 27 from
the respective intermediate web path section 91, 92 to the first
distribution path section 68. Via the double bend 94 or the double
bend 96, the paper roll transport trolley 5 can return with a
residual paper roll 27 to the second distribution path section 69.
Here, the paper roll transport trolley 5 moves in an opposite
direction in comparison with the equipping. It can move back to the
paper roll store 36 via the first switch 41 and the feed/discharge
path 39.
[0182] If the laminating web splicing apparatus 34 is to be
re-equipped with the paper roll 27, the paper roll transport
trolley 5 moves via the double bend 101 or the double bend 103 from
the second distribution path section 69 to the laminating web path
section 98 or 99. The corresponding laminating web path section 98,
99 is selected in a manner which is dependent on the required
equipping of the first or second unrolling unit of the laminating
web splicing apparatus 34. The paper roll transport trolley 5 can
also pass via the double bend 100 or the double bend 102 from the
first distribution path section 68 to the laminating web path
section 77 or 78.
[0183] Via the double bend 100 or the double bend 101, the paper
roll transport trolley 5 can return with a residual paper roll 27
from the respective laminating web path section 98, 99 to the first
distribution path section 68. Via the double bend 101 or the double
bend 103, the paper roll transport trolley 5 can return with a
residual paper roll 27 to the second distribution path section 69.
Here, the paper roll transport trolley 5 moves in an opposite
direction in comparison with the equipping. It can move back to the
paper roll store 36 via the first switch 41 and the feed/discharge
path 39.
* * * * *